CN107835047A - The system for realizing that ONU sides Type C optical links switch protection is detected based on LOS - Google Patents
The system for realizing that ONU sides Type C optical links switch protection is detected based on LOS Download PDFInfo
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- CN107835047A CN107835047A CN201711201704.5A CN201711201704A CN107835047A CN 107835047 A CN107835047 A CN 107835047A CN 201711201704 A CN201711201704 A CN 201711201704A CN 107835047 A CN107835047 A CN 107835047A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/03—Arrangements for fault recovery
- H04B10/032—Arrangements for fault recovery using working and protection systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/112—Line-of-sight transmission over an extended range
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The present invention relates to a kind of system detected based on LOS and realize that ONU sides Type C optical links switch protection.By active/standby two-way optical module on ONU devices, same TX/RX power-up states are configured to, active/standby optical module shares same PON MAC, and TX physical link layers realize 1 using MUX:2 branch, RX physical link layers realize that 2 enter 1 switching using single-pole double-throw switch (SPDT), other optical mode block control signals will also be realized using single-pole double-throw switch (SPDT) connects switching between PON MAC and active/standby optical module, and described single-pole double-throw switch (SPDT) all by the LOS signals of optical module as control signal, switched accordingly.This kind detects the system for realizing that ONU sides Type C optical links switch protection based on LOS, is all based on hardware circuit realization, and very simple is convenient, and software cost is low.
Description
Technical field
The present invention relates to Fibre Optical Communication Technology, more particularly to Fibre Optical Communication Technology optical link protection field, in particular to one
Kind detects the system for realizing that ONU sides Type-C optical links switch protection based on LOS.
Background technology
In recent years, the new technology revolution using internet as representative profoundly changes traditional telecommunications concept and system knot
Structure, with the gradual opening in various countries access network market, telecommunication control policy is loosened, and competition increasingly sharpens and expanded, new industry
The rapid appearance of business demand, under huge market potential driving, generate various access network technologies.Fiber optic communication because
For the advantages that message capacity is big, quality is high, stable performance, anti-electromagnetic interference, strong security, in trunk communication, play the part of emphatically
Role is wanted, in access network, intelligent acess application is also more and more extensive.
So-called intelligent acess is exactly that end user device (ONU) is connected to local side apparatus by optical fiber, is goed deep into according to optical fiber
The difference of the degree of user, intelligent acess can be divided into FTTH/FTTB/FTTO etc..Along with the popularization of fiber optic communication, optical fiber connects
Enter the increasingly complicated of environment, the integrity problem of fiber link also increasingly highlights.
The fiber link multiplexing defined in the GPON communication protocols ITU-TG.984.1, the several ways of protection：Type-A、
Type-B, Type-C, Type-D, wherein Type-C back up to OLT/ONU/ODN all-optical network link, by being switched to
Equipment can recover failure in optical link arbitrfary point, have very high reliability.
The content of the invention
The purpose of the present invention be overcome it is above-mentioned in the prior art the shortcomings that, there is provided it is a kind of follow above-mentioned agreement based on
The system that ONU sides Type-C optical links switch protection is realized in LOS detectings.
To achieve these goals, it is of the invention to be based on what LOS detectings realized that ONU sides Type-C optical links switch protection
Unite specific as follows：
This detects the system for realizing that ONU sides Type-C optical links switch protection based on LOS, and it is mainly characterized by, described
Also include standby optical module in ONU, described system switches key light module and standby optical mode according to the LOS signals of key light module in ONU
The working condition of block.
It is preferred that the key light module and backlight module in described ONU share same PON MAC.
More preferably, described system by be arranged at RX physical link layers and TX physical link layers, it is by key light module
The device of LOS signals control break-make realizes the switching of key light module and the working condition of standby optical module.
More preferably, being arranged at the device of RX physical link layers includes single-pole double-throw switch (SPDT).
More preferably, being arranged at the device of TX physical link layers includes data selector MUX.
More preferably, described key light module and standby optical module also switch corresponding control signal by single-pole double-throw switch (SPDT).
More preferably, described control signal includes I2C BUS (SDA/SCL) control signal, TX_EN control signals, TX_SD
Control signal, TX_FAULT control signals, RX_LOS control signals and PON_PRESENT control signals.
It is preferred that also include being used to indicate that the LED of the working condition of key light module and standby optical module to refer in described system
Show lamp.
System that ONU sides Type-C optical links switch protection is realized based on LOS detectings using the present invention, passes through key light mould
The LOS signals of block carry out Type-C optical links and switch protection, realize the switching control of key light module and standby optical module, can incite somebody to action
ONU lateral incisions change time control in nanosecond rank, simple and convenient, and are realized entirely by hardware circuit, convenient and swift, without programming.
Brief description of the drawings
Fig. 1 is the logical comparison table that the physical link of active and standby optical module is switched over based on LOS signals.
Fig. 2 is that being detected based on LOS for the present invention realizes that ONU sides Type-C optical links switch the system of protection in TX physics chains
1 is realized by MUX in road：The schematic diagram of 2 branches.
Fig. 3 is that being detected based on LOS for the present invention realizes that ONU sides Type-C optical links switch the system of protection in RX physics chains
Road 2 schematic diagrames for entering 1 switching are realized by single-pole double-throw switch (SPDT).
Fig. 4 is that the other control signals of active and standby optical module of the present invention realize the schematic diagram of link switching based on LOS detectings.
Fig. 5 realizes that ONU sides Type-C optical links are switched in the system of protection based on LOS detectings for the present invention and shows key light
The LED connection diagram of module and standby optical module working condition.
Embodiment
In order to more clearly describe the technology contents of the present invention, carried out with reference to specific embodiment further
Description.
This detects the system for realizing that ONU sides Type-C optical links switch protection based on LOS, and it is mainly characterized by, described
Also include standby optical module in ONU, described system switches key light module and standby optical mode according to the LOS signals of key light module in ONU
The working condition of block, when the key light module is sent LOS signals, whole ONU equipment is switched to the working condition of standby optical module, realizes
Type-C optical links are switched.
In a kind of preferred embodiment, key light module and backlight module in described ONU share same PON
MAC。
In a kind of more preferably embodiment, described system is by being arranged at RX physical link layers and TX physical link layers
, control by the LOS signals of key light module the device of break-make to realize the switching of key light module and the working condition of standby optical module.
In a kind of more preferably embodiment, being arranged at the device of RX physical link layers includes single-pole double-throw switch (SPDT).
In a kind of more preferably embodiment, being arranged at the device of TX physical link layers includes data selector MUX.
In a kind of more preferably embodiment, described key light module and standby optical module also obtain phase by single-pole double-throw switch (SPDT)
Control signal is answered, realizes that 2 enter 1 by single-pole double-throw switch (SPDT), key light module and standby optical module are carried out selecting a gating, obtains control letter
Number.
In a kind of more preferably embodiment, described control signal includes I2C BUS (SDA/SCL) control signal, TX_EN
Control signal, TX_SD control signals, TX_FAULT control signals, RX_LOS control signals and PON_PRESENT control signals.
Also include being used for the work for indicating key light module and standby optical module in a kind of preferred embodiment, in described system
Make the LED light of state.In specifically used, by LED judge be currently key light module in working condition, or standby light
Module is in working condition.The LED is also directly controlled by the LOS signals of key light module, and optical module is in normal link company
Connect that corresponding LED during state is bright, the working condition of the current active/standby optical module of visual representation.
Fig. 2 and Fig. 3 are referred to, in a particular embodiment, the two-way optical module having on ONU is on identical TX/RX
Electricity condition, this is due to the POWER (power supply) that two-way optical module shares TX/RX, and wherein TX POWER can be opened by software
And closing, and (reset) primary/standby optical module can be opened/closed simultaneously with software, active/standby optical module shares a PON
MAC, TX physical link layer realize 1 during output using data selector MUX：2 branches, RX physical link layers use single-pole double throw
Switch realizes that 2 enter 1 switching, and single-pole double-throw switch (SPDT) is controlled by primary module LOS signals and switched.
As seen from Figure 1, in a particular embodiment, only when key light module and standby optical module produce LOS signals,
PON MAC LOS can be informed, for PON MAC, equivalent to one optical module of key light module and standby optical module.
During actual selection, to be selected suitable data selector MUX and hilted broadsword double according to specific traffic rate
Throw switch SW, the message transmission rate that the single-pole double-throw switch (SPDT) SW such as in GPON RX physical link layers is supported should be greater than
2.5Gbit/s, XGS-PON then need the hilted broadsword in data selector MUX and the RX physical link layer in TX physical link layers
The message transmission rate that commutator SW is supported is more than 10Gbit/s, and the switch speed switched needs to guarantee in nanosecond
It is interior to realize switching.
Other control signals of optical module, as I2C BUS (SDA/SCL), TX_EN, TX_SD, TX_FAULT, RX_LOS and
PON_PRESENT, it will also be realized using single-pole double-throw switch (SPDT) and switching is connected between PON MAC and active/standby optical module, be used herein as
To single-pole double-throw switch (SPDT) again by the LOS signals of key light module come control switching.
In specific implementation process, the single-pole double-throw switch (SPDT) of multichannel, such as the single-pole double-throw switch (SPDT) on 8 tunnels can be used
Or the single-pole double-throw switch (SPDT) on the tunnels of Liang Ge tetra-.And single-pole double-throw switch (SPDT) need it is two-way communicate, disclosure satisfy that the number of I2C buses
According to the requirement of transmission rate, and single-pole double-throw switch (SPDT) speed is in nanosecond rank.
In actual use, MUX is preferably also the MUX that the other switching rate of nanosecond can be achieved.
Referring to Fig. 5, in specific implementation process, two LED lights can be increased, for indicating active/standby optical module
Which is in running order.LED controls again by LOS signals.
Typically, key light module LOS signals export logic unglazed or when receiving luminous intensity and being less than receiving sensitivity
High level, control described MUX and SW to switch over, make standby optical module incision working condition；When normally receiving light, logic is exported
Low level, described MUX and SW are still that key light module is operated in working condition without switching.Therefore above step is based on,
All switchings are based on the LOS signals of key light module, it is not necessary to which software controls, the setting of cooperation OLT sides, after link switching not
With re-registering, so as to ensure that the link channel of data flow is switched fast.
System that ONU sides Type-C optical links switch protection is realized based on LOS detectings using the present invention, passes through key light mould
The LOS signals of block carry out Type-C optical links and switch protection, realize the switching control of key light module and standby optical module, can incite somebody to action
ONU lateral incisions change time control in nanosecond rank, simple and convenient, and are realized entirely by hardware circuit, convenient and swift, without programming.
In this description, the present invention is described with reference to its specific embodiment.But it is clear that it can still make
Various modifications and alterations are without departing from the spirit and scope of the present invention.Therefore, specification and drawings are considered as illustrative
It is and nonrestrictive.
Claims (8)
1. a kind of detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is characterised in that described ONU
In also include standby optical module, described system switches key light module and standby optical module according to the LOS signals of key light module in ONU
Working condition.
2. according to claim 1 detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is special
Sign is that the key light module and backlight module in described ONU share same PON MAC.
3. according to claim 2 detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is special
Sign is, described system is by being arranged at RX physical link layers and TX physical link layers, LOS signal controls by key light module
The device of break-make processed realizes the switching of key light module and the working condition of standby optical module.
4. according to claim 3 detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is special
Sign is that being arranged at the device of RX physical link layers includes single-pole double-throw switch (SPDT).
5. according to claim 3 detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is special
Sign is that being arranged at the device of TX physical link layers includes data selector MUX.
6. according to claim 2 detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is special
Sign is that described key light module and standby optical module also switch corresponding control signal by single-pole double-throw switch (SPDT).
7. according to claim 6 detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is special
Sign is that described control signal includes I2C BUS (SDA/SCL) control signal, TX_EN control signals, TX_SD control letters
Number, TX_FAULT control signals, RX_LOS control signals and PON_PRESENT control signals.
8. according to claim 1 detect the system for realizing that ONU sides Type-C optical links switch protection based on LOS, it is special
Sign is, the LED light for being used to indicate the working condition of key light module and standby optical module is also included in described system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201704.5A CN107835047A (en) | 2017-11-27 | 2017-11-27 | The system for realizing that ONU sides Type C optical links switch protection is detected based on LOS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711201704.5A CN107835047A (en) | 2017-11-27 | 2017-11-27 | The system for realizing that ONU sides Type C optical links switch protection is detected based on LOS |
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| Publication Number | Publication Date |
|---|---|
| CN107835047A true CN107835047A (en) | 2018-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711201704.5A Pending CN107835047A (en) | 2017-11-27 | 2017-11-27 | The system for realizing that ONU sides Type C optical links switch protection is detected based on LOS |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877612A (en) * | 2010-06-30 | 2010-11-03 | 中兴通讯股份有限公司 | System for protecting optical link of passive optical network, device thereof and method thereof |
| CN102075238A (en) * | 2010-12-02 | 2011-05-25 | 中兴通讯股份有限公司 | Passive optical network and protection switching method thereof |
| CN102983903A (en) * | 2012-11-14 | 2013-03-20 | 中兴通讯股份有限公司 | Device rapidly handling single fiber failure and method handling the single fiber failure |
| CN106656313A (en) * | 2017-02-15 | 2017-05-10 | 广东九博科技股份有限公司 | Device for realizing optical interface protection switching and method thereof |
| CN106712840A (en) * | 2016-10-25 | 2017-05-24 | 深圳市新格林耐特通信技术有限公司 | Method and apparatus for realizing PON protection system |
-
2017
- 2017-11-27 CN CN201711201704.5A patent/CN107835047A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101877612A (en) * | 2010-06-30 | 2010-11-03 | 中兴通讯股份有限公司 | System for protecting optical link of passive optical network, device thereof and method thereof |
| CN102075238A (en) * | 2010-12-02 | 2011-05-25 | 中兴通讯股份有限公司 | Passive optical network and protection switching method thereof |
| CN102983903A (en) * | 2012-11-14 | 2013-03-20 | 中兴通讯股份有限公司 | Device rapidly handling single fiber failure and method handling the single fiber failure |
| CN106712840A (en) * | 2016-10-25 | 2017-05-24 | 深圳市新格林耐特通信技术有限公司 | Method and apparatus for realizing PON protection system |
| CN106656313A (en) * | 2017-02-15 | 2017-05-10 | 广东九博科技股份有限公司 | Device for realizing optical interface protection switching and method thereof |
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Application publication date: 20180323 |
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